Results 31 to 40 of about 27,267 (153)

A self-study using data to inform student-teacher supports in a transformed teacher preparation program [PDF]

open access: yesSchool-University Partnerships
Purpose – The purpose of this research was to use a self-study design/approach to analyze and improve teacher preparation policies and practices focused on the use of data and program improvement that was conducted at an urban university in the ...
Celestial Wills-Jackson
doaj   +1 more source

An Algorithm for Affordable Vision-Based GNSS-Denied Strapdown Celestial Navigation

open access: yesDrones
Celestial navigation is rarely seen in modern Uncrewed Aerial Vehicles (UAVs). The size and weight of a stabilized imaging system, and the lack of precision, tend to be at odds with the operational requirements of the aircraft.
Samuel Teague, Javaan Chahl
doaj   +1 more source

Thai Students’ Understanding about Celestial Motion within Their Social and Cultural Context

open access: yes, 2015
This study investigated forty-one Thai 9th grade students’ understanding about the motion of the sun, moon, and stars within their social and cultural context. Students' understanding was explored using a survey tool titled “Students’ Understanding about
Hume, Anne Christine   +5 more
core   +1 more source

Cylindrical Manifolds and Tube Dynamics in the Restricted Three-Body Problem [PDF]

open access: yes, 2004
Within the phase space of the planar circular restricted three-body problem, stable and unstable manifolds of periodic orbits with a S x R (cylindrical) geometry are shown to exist.
Ross, Shane David
core   +1 more source

Faith-Based Organizations as New Frontiers of Religious Education: Program Initiatives and Engagements Strategies

open access: yesHitik
Faith-based organizations have emerged as significant actors in promoting active engagement in pressing social issues within Asia, particularly in the Philippines, encompassing interfaith dialogue, human rights, and ecological concerns.
Ronaldo Celestial
doaj   +1 more source

The principle of measuring unusual change of underground mass by optical astrometric instrument

open access: yesGeodesy and Geodynamics, 2012
Optical observations from a ground-based astrometric instrument provide a unique set of data sensitive to variations of local plumb line, which represent the change of local gravitational field on the ground.
Wang Jiancheng   +7 more
doaj   +1 more source

SerDes link co-simulation and passive link optimization design

open access: yesDianzi Jishu Yingyong
As the signal transmission rate of the SerDes link increases, the signal integrity (SI) challenge increases further as the channel link passes through PKG and PCB boards, through holes, AC capacitors and connectors.
Du Shenyan, Fu Leilei
doaj   +1 more source

Double CO WD systems from the WD+He subgiant channel and type Ia supernovae

open access: yesOpen Astronomy, 2016
Recent studies suggested that at least some of the observed SNe Ia originate from the double-degenerate model, which involves the merging of double carbon-oxygen white dwarfs (CO WDs).
Liu Dongdong, Wang Bo, Wu Chengyuan
doaj   +1 more source

Carrollian perspective on celestial holography [PDF]

open access: yes, 2022
We show that a 3D sourced conformal Carrollian field theory has the right kinematic properties to holographically describe gravity in 4D asymptotically flat spacetime. The external sources encode the leaks of gravitational radiation at null infinity. The
Herfray, Yannick; orcid:   +3 more
core   +1 more source

Celestial: A Smart Contracts Verification Framework [PDF]

open access: yes, 2021
We present CELESTIAL, a framework for formally verifying smart contracts written in the Solidity language for the Ethereum blockchain. CELESTIAL allows programmers to write expressive functional specifications for their contracts.
Dharanikota, Samvid   +4 more
core   +1 more source

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